Float valve fob



(No Model.) M. J. RHODES.

FLOAT VALVE FOR EVAPORATING PANS. No. 484,560.

Patented Oct. 18, 1892,.

Hdif asses UNITED STATES PATENT OF E.

MARcUs'J. RHODES, or DAYTON, NEW YORK.

FLOAT-VALVE FOR EVAPORATlNG-PANS.

SPECIFICATION forming part of Letters Patent No. 484,566, dated October18, 1892.-

Application filed December 9, 1891. Serial No. 414,512. (No model.) a

To all whom it may concern:

Be it known that I, MARCUS J. RHODES, a citizen of the United States,residing at Day-l ton, in the county of Oattaraugus and State of NewYork, have invented a new and useful Improvement in Float-Valves, ofwhich the following is a specification.

This invention relates to float-valves; and it has for its object toprovide a valve of this character which is particularly designed forfeeding sap into a pan or evaporator and one which will regularly andaccurately feed the required amount of sap at the proper moment, thesame being regulated according to the depth of liquid in the pan orevaporator, although said valve may be used equally as well forsupplying tanks, troughs, and other receptacles which are required to beautomatically filled, I

To this end it is the main and primary object of this invention toprovide a float-valve which is acted upon directly by the rise and fallof the liquid within the receptacle without the use of levers, whichlessen the sensitivene'ss of the valve to a great extent, inasmuch asthe rising and falling of the liquid will have to be materiallyperceptible in order to operate lever-actuated float-valves.

With these and many other objects in view, which will readily appear asthe nature of the invention is better understood, the same consists inthe novel construction, combination, and arrangement of partshereinafter more fully described, illustrated, and claimed.

In the accompanying drawings, Figure 1 is a vertical transversesectional view of an evaporating pan or vessel having a float-valvefeeder located therein and constructed in accordance with thisinvention. Fig. 2 is an enlarged sectional view of the valve proper.Referring to the accompanying drawings, Adesignates atank or vat holdingthe sap to be regularly supplied to the adjacent evaporating-pan B, ofthe usual construction and operated in the usual manner, and said tankor vat may be an ordinary supplying-reser voir to be used for otherpurposes, which will be readily apparent, and connected with the lowerend of which is the supply-pipe O, in the present instance extendingover the evaporating-pan and having secured to the end thereof anddepending within said pan the float-valve casing D. The valve-casing Dis provided with the upper screw-threaded neck or'receiving-opening cl,within which the end of the supply-pipe U, is secured, and thus supportssaid valve-casing, which is further provided directly below the opening01 with the flanged valve-seat E, having an inwardly extending andprojecting annular ring e, forming a raised seat, against which thevalve-disk F-is forced by the rising and falling of the liquid withinthe receptacle B. The valvedisk-Fiis carried upon the upper end of theelongated stem G and is provided upon its upper face with the rubbercushion f, which is adapted to be seated upon theprojectingring'valve-seat, and thus form a tight and perfect joint. The valve-stemG works through the bonnet I-I, secured in the lower end of thevalve-casing directly beneaththe inlet-opening thereof, and the same isprovided with the integral and upwardly-extending stopsleeve I,embracing said stem and projecting within the valve-casin g, so thatwhen the valve-stem is not being operated upon, the said sleeve forms astop, against which the under side of the valve-disk rests, and thuslimits the motion thereof, while at the same time allowing a full flowof the liquid from the inlet-opening through the threaded outlet-openingJ in the side of the valve-casing and'adapted to receive adischarge-pipe out of which the sap or other liquid flows at statedintervals. The extreme lower end of the valve-stem G below the bonnet isexteriorly threaded at K for some distance to receive the regulating andactuating tappet-nut L, adjustably engaging said threads. The said lowerend of the valve-stem is adapted to work within the float M, located inthe bottom of the receptacle and adapted to actuate the valve accordingto the raising and lowering of the liquid within the pan, as will beapparent. vessel inclosed on all sides and provided with a centralguide-tube N, secured to the top and bottom, and which, while receivingthe lower end of the valve-stem so that said float may work directlythereover and have the upper end of the tube strike against the nut L toregulate the depth of the liquid, while said tube at the same time formsa brace or studsupport between said top and bottom of the The said floatcomprises a hollow.

float and keeps the top from springing down, and, inasmuch asconsiderable pressure is created within the float on account of theheated air therein, the same is provided with a vent-tube 0, located inthe top of the float to insure the same against bursting.

It is thought that the construction and operation of the improvedfloat-valve will be readily apparent. Having adjusted the nut upon thelower end of the valve-stem according to the amount of liquid desired toalways be within the pan, it will be noted that as the float rises andfalls according to the fluctuations of the liquid the upper end of thecentral tube therein will strike the nutand throw the cushion valve-diskup against the seat and shut oif the supply and leaving said nut, or, asit falls, will allow the liquid to flow within the pan, which operationwill be entirely automatic and can be accurately regulated.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is-

1. In a float-valve, the combination of the valve having a stemprojecting beneath the valve-casing and provided with an adjustabletappet and a hollow float working under the lower end of said valve-stemand adapted to engage said tappet, substantially as set forth.

2. In a float-valve, the combination of a reciprocating valve having athreaded stem projecting below the valve-casing, a tappetnut adj ustablyengaging the threaded stem, and a hollow float having a central tubesecured therein and engaging beneath said nut, and a vent-tube,substantially as set forth.

3. In a float-valve, the combination of a reciprocating valve having athreaded stem projecting below the valve-casing, a tappetnut adjustablyengaging the threaded stem, and a hollow float or vessel having acentral tube secured vertically therein and receiving the lower end ofthe valve-stem and engaging beneath the tappet-nut thereon, and avent-tube, substantially as set forth.

4. In a float-valve, the valve-casing having an inwardly-projectingflange-ring valve-seat located directly below the upper inlet-opening, avalve-stem working through the lower end of said casing, a valve-diskupon the inner end of said stern and provided with a cushioned faceadapted to bear against said seat, and a float connected with the lowerend of said valve-stem, substantially as set forth.

5. In a float-valve, the combination of the valve-casing having aninwardly-projecting flanged ring-valve seat located directly beneath theupper inlet-opening, a removable bonnet secured in the lower end of saidcasing and having an inwardly-extending stopsleeve, a valve-stem workingthrough and pr0- jecting beneath said bonnet, a valve-disk upon theinner end of said stem and provided with a cushioned face adapted tobear against said seat and limited in movement by said stop-sleeve, anda float connected to the lower end of said valve-stem, substantially asset forth.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in the presence of two witnesses.

MARCUS J. RHODES.

Witnesses:

A. M. DELONG, JOHN C. WILBER.

